KP-55 Collet Chuck 520K11
Precision-crafted metal collet chuck designed to deliver smooth, secure bit-holding for professional nail-drill handpieces. The unit threads into the front of the handpiece and holds 3/32″ (≈2.35 mm) diameter bits (plug size: 2.35 mm).
Features
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Thread end diameter: approx. 4.10 mm. Length: approx. 33 mm. Plug size (bit shank): 2.35 mm. Material: Metal (stable for high-speed use) Benefits / Use-Case:
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Perfect replacement part when the existing chuck of your KP-55 or KP-60 handpiece becomes worn, loose, or does not clamp bits reliably.
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Maintains bit concentricity and grip stability, which is crucial for safe, smooth operation at high speeds (the KP-55 handpiece itself is rated up to 30,000 RPM) By replacing this component, you extend the usable life of the handpiece without replacing the entire unit.
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Ensure your handpiece is compatible with #520K11 (KP-55, KP-60). If you have a different model, confirm the correct part number. Before installation, clean the mating surfaces of the handpiece to remove debris or residue that could affect the chuck alignment.
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After installation, check that bits insert smoothly and that the chuck securely locks the bit without wobble.
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If you notice vibration, loosen the chuck, re-seat the bit, and re-tighten the chuck to proper torque.